walkero
/
harfbuzz
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

[gasp] Implement the table parsing 

May or may not be used in https://github.com/harfbuzz/harfbuzz/pull/1432
This commit is contained in:
Ebrahim Byagowi 2018-12-05 13:51:14 +03:30
parent 79e7e3445e
commit 8f80e53341
3 changed files with 88 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/Makefile.sources
View File

@ -59,6 +59,7 @@ HB_BASE_sources = \
hb-ot-face.cc \
hb-ot-face.hh \
hb-ot-font.cc \
hb-ot-gasp-table.hh \
hb-ot-glyf-table.hh \
hb-ot-hdmx-table.hh \
hb-ot-head-table.hh \

84
src/hb-ot-gasp-table.hh Normal file
View File

@ -0,0 +1,84 @@
/*
* Copyright © 2018 Ebrahim Byagowi
*
* This is part of HarfBuzz, a text shaping library.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and its documentation for any purpose, provided that the
* above copyright notice and the following two paragraphs appear in
* all copies of this software.
*
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*/
#ifndef HB_OT_GASP_TABLE_HH
#define HB_OT_GASP_TABLE_HH
#include "hb-open-type.hh"
#include "hb-ot-hhea-table.hh"
#include "hb-ot-os2-table.hh"
#include "hb-ot-var-hvar-table.hh"
/*
* gasp -- Grid-fitting and Scan-conversion Procedure
* https://docs.microsoft.com/en-us/typography/opentype/spec/gasp
*/
#define HB_OT_TAG_gasp HB_TAG('g','a','s','p')
namespace OT {
struct GaspRange
{
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this));
}
public:
HBUINT16 rangeMaxPPEM; /* Upper limit of range, in PPEM */
HBUINT16 rangeGaspBehavior;
/* Flags describing desired rasterizer behavior. */
public:
DEFINE_SIZE_STATIC (4);
};
struct gasp
{
enum { tableTag = HB_OT_TAG_gasp };
inline const GaspRange &get_gasp_range (unsigned int i) const
{ return gaspRanges[i]; }
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) &&
gaspRanges.sanitize (c));
}
protected:
HBUINT16 version; /* Version number (set to 1) */
ArrayOf<GaspRange>
gaspRanges; /* Number of records to follow
* Sorted by ppem */
public:
DEFINE_SIZE_ARRAY (4, gaspRanges);
};
} /* namespace OT */
#endif /* HB_OT_GASP_TABLE_HH */

5
src/hb-ot-layout.cc
View File

@ -35,11 +35,12 @@
#include "hb-map.hh"
#include "hb-ot-kern-table.hh"
#include "hb-ot-gasp-table.hh" // Just so we compile it; unused otherwise.
#include "hb-ot-layout-gdef-table.hh"
#include "hb-ot-layout-gsub-table.hh"
#include "hb-ot-layout-gpos-table.hh"
#include "hb-ot-layout-base-table.hh" // Just so we compile it; unused otherwise
#include "hb-ot-layout-jstf-table.hh" // Just so we compile it; unused otherwise
#include "hb-ot-layout-base-table.hh" // Just so we compile it; unused otherwise.
#include "hb-ot-layout-jstf-table.hh" // Just so we compile it; unused otherwise.
#include "hb-ot-name-table.hh"
#include "hb-ot-os2-table.hh"